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Note 5 - Bank Debt (Details Textual) $ in Thousands |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 13, 2023 USD ($) | Apr. 15, 2020 USD ($) | Mar. 31, 2023 USD ($) | Mar. 12, 2023 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2023 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 25, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jul. 23, 2021 USD ($)
Long-Term Debt, Gross |  |  |  |  |  |  |  | $ 85,213 |  | $ 111,738 |
Debt Issuance Costs, Net, Total |  |  |  |  |  |  |  | $ 2,469 |  | 3,973 |
Leverage Ratio |  |  |  |  |  |  |  | 2.05 |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative, Basis Spread on Variable Rate |  |  |  |  |  |  |  | 4.00% |  |  |
Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Increase (Decrease), Net, Total |  |  |  |  |  |  |  | $ 26,500 |  |  |
Debt Instrument, Liquidity |  |  |  |  |  |  |  | 32,100 |  |  |
Letters of Credit Outstanding, Amount |  |  |  |  |  |  |  | 11,200 |  |  |
Debt Issuance Costs, Net, Total |  |  |  |  |  |  |  | $ 2,500 | $ 2,100 | $ 4,000 |
Debt Instrument, Covenant, Debt Service Coverage Ratio |  |  |  |  |  |  |  | 1.49 |  |  |
Credit Agreement [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative, Fixed Interest Rate |  |  |  |  |  |  |  | 2.92% |  |  |
Credit Agreement [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Long-Term Debt, Gross |  |  |  |  |  |  |  | $ 5,500 |  |  |
Credit Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Debt Service Coverage Ratio |  |  |  |  |  |  |  | 1.25 |  |  |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Variable Rate Floor |  | 0.50% |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 2.75% |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 4.00% |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | Forecast [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Total |  |  |  |  | $ 5,000 |  | $ 10,000 |  |  |  |
Credit Agreement [Member] | Forecast [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  | 4.00% |  |  |  |  |
Credit Agreement [Member] | Post Amendment [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 85,000 |  |  |
Long-Term Debt, Gross |  |  |  |  |  |  |  | 40,500 |  |  |
Proceeds from Issuance of Debt |  |  |  |  |  |  |  | 44,700 |  |  |
Credit Agreement [Member] | Subsequent Event [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Total |  |  | $ 5,500 |  |  |  |  |  |  |  |
Credit Agreement [Member] | Subsequent Event [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 4.00% |  |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | Subsequent Event [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 5.00% |  |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  | 120,000 |  |  |
Long-Term Line of Credit, Total |  |  |  |  |  |  |  | 79,700 |  |  |
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  |  |  |  |  | 29,100 |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  |  | $ 52,700 |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Maximum Annual Capital Expenditures |  |  |  |  |  |  | $ 75,000 |  |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Amount to be Converted | $ 35,000 |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 85,000 |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit, Total |  |  |  | $ 17,000 |  |  |  |  |  |  |
Paycheck Protection Program CARES Act [Member] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Notes Payable, Total |  | $ 10,000 |  |  |  |  |  |  |  |  |
Notes Payable, Total |  |  |  |  |  |  |  |  |  |  | $ 10,000

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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